Abstract: An apparatus includes a controller coupled to a stereoscopic image viewer. The stereoscopic image viewer includes a viewing lens, an image capture unit, and a plurality of light sources. The image capture unit is configured to capture image frames. The controller receives the captured image frames. The controller is configured to switch light output from one of the plurality of light sources to another one of the plurality of light sources if a corneal reflection in a captured image frame intersects a fixed reflection in the captured image frame.

Abstract: An apparatus includes a controller coupled to a stereoscopic image viewer. The stereoscopic image viewer includes a viewing lens, an image capture unit, and a plurality of light sources. The image capture unit is configured to capture image frames. The controller receives the captured image frames. The controller is configured to switch light output from one of the plurality of light sources to another one of the plurality of light sources if a corneal reflection in a captured image frame intersects a fixed reflection in the captured image frame.

Abstract: An apparatus includes a controller coupled to a stereoscopic image viewer. The stereoscopic image viewer includes a viewing lens, an image capture unit, and a plurality of light sources. The image capture unit is configured to capture image frames. The controller receives the captured image frames. The controller is configured to switch light output from one of the plurality of light sources to another one of the plurality of light sources if a corneal reflection in a captured image frame intersects a fixed reflection in the captured image frame.

Abstract: An exemplary system may access head presence data and eye tracking data. The head presence data indicates a presence or an absence of a head of a user within a vicinity of a viewer console. The eye tracking data indicates whether an eye of a user is gazing at a display device. If the head presence data indicates that the head of the user is present and the eye tracking data indicates that the eye of the user is gazing at the display device, the system directs the user control system to operate in a first operating mode. If the head presence data indicates that the head of the user is present and the eye tracking data indicates that the eye of the user is not gazing at the display device, the system directs the user control system to operate in a second operating mode different from the first operating mode.

Abstract: An exemplary image viewing system includes a display device configured to emit visible light representative of an image provided for display by the image viewing system, an infrared light source configured to emit infrared light, a viewing lens, and a black glass mirror provided between the infrared light source and the viewing lens. The black glass mirror comprises black glass and a coating on an outer surface of the black glass. The coating is configured to reflect a first portion of the visible light emitted from the display device towards the viewing lens, pass a second portion of the visible light emitted from the display device to the black glass, and pass a portion of the infrared light emitted from the infrared light source toward the viewing lens. The black glass is configured to pass the portion of the infrared light and absorb the second portion of the visible light.

Abstract: An apparatus includes a controller coupled to a stereoscopic image viewer. The stereoscopic image viewer includes a viewing lens, an image capture unit, and a plurality of light sources. The image capture unit is configured to capture image frames. The controller receives the captured image frames. The controller is configured to switch light output from one of the plurality of light sources to another one of the plurality of light sources if a corneal reflection in a captured image frame intersects a fixed reflection in the captured image frame.

Abstract: A console for a medical includes a display, an eye tracking input module, a second input module, and one or more processors coupled to the display, the eye tracking input module, and the second input module. The one or more processors is configured to perform operations including receiving a first user input from the eye tracking input module; determining, based on the first user input, whether a gaze of a user is directed toward an activation region of the display; in response to determining that the gaze of the user is directed toward the activation region, displaying, via the display, a control; receiving a second user input from the second input module; and adjusting the control based on the second user input.

Abstract: An apparatus includes a stereoscopic image viewer. The stereoscopic image viewer includes a housing, a first lens, a second lens, and an eye-tracking image capture unit. The first lens, the second lens, and the eye-tracking image capture unit are contained in the housing. The eye-tracking image capture unit has a field of view and the eye-tracking image capture unit being is mounted within the housing with the first lens and the second lens within the field of view.